Ice Fog User
Guide
- June 2002
7
OPERATING INSTRUCTIONS
The MDG Low Fog Generators are quite easy to operate and require no preventive main-
tenance. They are supplied with a removeable remote control. A DMX Interface can be
purchased as an option.
When the MAIN POWER 230 or 208 VAC and the MAIN POWER SWITCH is applied,
the generator is placed in stand-by mode. When in stand-by mode, most of the electronic
controls are off (except for the three types of fail-safe systems), waiting for the ON switch
on the remote control to be activated.
When the ON switch is pressed, the red LED indicating that the unit is working will lit, as
well as the yellow LED called HEAT, indicating the start of the heating cycle which will
last approximately 10 minutes. When the temperature reaches a pre-adjusted level called
the READY level (indicated by a green LED), the HEAT yellow LED will turn off.
The generator is ready to produce fog. Adjusting the working pressure of the CO
2
gas
regulator can control the amount of the fog emission.
When an overheating condition is detected, or if the internal temperature reaches 60°C
(140°F), a safety circuit is triggered. This circuit removes the power to the heating
elements, preventing hazardous conditions
The FOG ON signal (green LED) can be applied to produce low fog for as long as the
ready level is reached and all other control parameters are within specifications.
The 100% Duty cycle is continuous with specified line voltage, and will degrade with line
voltage loss. If that is the case, reducing maximum operating pressure can compensate it.
SHUT DOWN PROCEDURES
A Generator must never be shut down while making Fog. To power off a Generator the
following sequence must be observed:
· Always turn off the fog emission.
· Power off the Fog Generator (by switching off the “MAIN POWER SWITCH” or
by removing the MAIN POWER.
· If not use for a long period:
Always depressurised the fluid reservoir using the pressure switch found at
the back of the unit. (See picture on page 3)
· Close the liquid refrigerated CO
2
valve input of the dewar.
Содержание ICE FOGQ
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